The Kosnica interchange was constructed on the Bregana – Zagreb – Lipovac motorway (Buzin – Ivanja Reka section), and comprehensive technical and technological supervision was provided for the project.
The cloverleaf-style Kosnica interchange forms a grade-separated junction between the Zagreb bypass, the connecting road (an extension of the D31/Radnička Street), and the eastern bypass of Velika Gorica. The supervised works included the interchange ramps, drainage systems, an overpass, underpasses for local and agricultural vehicles, and a noise barrier. Construction took place between 2006 and 2007.